# US 10,375,598 B2 · Traffic control method and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,375,598 B2 - Document ID: US10375598B2 - Status: Granted - Kind: B2 - Application number: 16/038,510 - Filed: 2018-07-18 - Published: 2018-11-08 - Granted: 2019-08-06 - Earliest claimed: 2014-05-26 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Yahui Wang; Guiming Shu; Wenmei Gao - Web page: https://patentgrep.com/patent/US10375598B2 ## CPC - H04W 28/0215: {based on user or device properties, e.g. MTC-capable devices (services for machine-to-machine communication [M2M] or machine type communication [MTC] H04W4/70; wireless resource selection or allocation plan definition based on terminal or device properties H04W72/51)} - H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication - H04W 28/0247: {based on conditions of the access network or the infrastructure network (central resource management H04W28/16)} - H04W 48/16: Discovering, processing access restriction or access information - H04W 68/005: {Transmission of information for alerting of incoming communication} - H04W 76/10: Connection setup - H04W 80/04: Network layer protocols, e.g. mobile IP [Internet Protocol] - H04W 84/12: WLAN [Wireless Local Area Networks] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A slave device accesses an external network through a master device via a short-range wireless communication channel between the master device and the slave device. The slave device receives a notification message from the master device, wherein the notification message includes information about an intermediate network used by the master device to connect to the external network. The slave device controls its network traffic to the external network according to a type of the intermediate network. When a master device uses a network of a cellular network type, use of network traffic in an application on a slave device can be restricted, thereby saving traffic. ## Claims ### Claim 1 A mobile communication system comprising: a first wireless mobile user device and a second wireless mobile user device, the first wireless mobile user device being configured to: connect to the internet through an access network; establish a short-range wireless communication channel with the second wireless mobile user device; receive data from the internet through the access network; forward the data from the internet to the second wireless mobile user device through the short-range wireless communication channel; send a notification message to the second wireless mobile user device through the short-range wireless communication channel, wherein the notification message includes a device type identifier of the first wireless mobile user device; the second wireless mobile user device being configured to: connect to the first wireless mobile user device through the short-range wireless communication channel; receive the data from the internet via the first wireless mobile user device; receive the notification message from the first wireless mobile user device; get the device type identifier of the first wireless mobile user device from the notification message; and restrict network traffic between the second wireless mobile user device and the internet according to the device type identifier. ### Claim 2 (depends on 1) The mobile communication system according to claim 1, wherein the second wireless mobile user device is configured to run multiple applications, and wherein restricting network traffic by the second wireless mobile user device comprises: notifying the multiple applications regarding the device type identifier for each the multiple applications to restrict network traffic of said each application according to the device type identifier. ### Claim 3 (depends on 1) The mobile communication system according to claim 1, wherein the second wireless mobile user device is further configured to display the device type identifier. ### Claim 4 A wireless mobile user device, comprising: a short-range wireless communication transceiver; a memory storing computer-executable instructions; and a processor configured to execute the computer-executable instructions to perform operations comprising: establishing, using the short-range wireless communication transceiver, a short-range wireless communication channel between the wireless mobile user device and a slave device; connecting to the internet through an access network; receiving data from the internet for the slave device; forwarding the data received from the internet to the slave device via the short-range wireless communication channel; sending a notification message to the slave device through the short-range wireless communication channel, wherein the notification message includes a device type identifier of the wireless mobile user device. ### Claim 5 (depends on 4) The wireless mobile user device according to claim 4 wherein the notification message instructs the slave device to restrict network traffic between the slave device and the internet according to the device type identifier. ### Claim 6 (depends on 4) The wireless mobile user device according to claim 4, wherein the notification message is a beacon frame. ### Claim 7 (depends on 4) The wireless mobile user device according to claim 4, wherein the short-range wireless communication channel is a Wi-Fi channel and the access network is a cellular network. ### Claim 8 A method performed by a wireless mobile user device for traffic control, comprising: establishing a short-range wireless communication channel with a slave device; connecting to the internet through an access network; receiving data from the internet for the slave device; forwarding the data received from the internet to the slave device via the short-range wireless communication channel; and sending a notification message to the slave device through the short-range wireless communication channel, wherein the notification message includes a device type identifier of the wireless mobile user. ### Claim 9 (depends on 8) The method according to claim 8, wherein the notification message instructs the slave device to restrict network traffic between the slave device and the internet according to the device type identifier. ### Claim 10 (depends on 8) The method according to claim 8, wherein the notification message is a beacon frame. ### Claim 11 (depends on 8) The method according to claim 8, wherein the short-range wireless communication channel is a Wi-Fi channel and the access network is a cellular network.